Magnesium isotope geochemistry

FZ Teng - Reviews in Mineralogy and Geochemistry, 2017 - pubs.geoscienceworld.org
Magnesium (Mg) has an atomic number of 12 and belongs to the alkaline earth element
(Group II) of the Periodic Table. The pure Mg is a silvery white metal and has a melting point …

Metal stable isotope signatures as tracers in environmental geochemistry

JG Wiederhold - Environmental science & technology, 2015 - ACS Publications
The biogeochemical cycling of metals in natural systems is often accompanied by stable
isotope fractionation which can now be measured due to recent analytical advances. In …

Mass fractionation laws, mass-independent effects, and isotopic anomalies

N Dauphas, EA Schauble - Annual Review of Earth and …, 2016 - annualreviews.org
Isotopic variations usually follow mass-dependent fractionation, meaning that the relative
variations in isotopic ratios scale with the difference in mass of the isotopes involved (eg …

Magnesium isotope evidence that accretional vapour loss shapes planetary compositions

RC Hin, CD Coath, PJ Carter, F Nimmo, YJ Lai… - Nature, 2017 - nature.com
It has long been recognized that Earth and other differentiated planetary bodies are
chemically fractionated compared to primitive, chondritic meteorites and, by inference, the …

Kinetics of Mg partition and Mg stable isotope fractionation during its incorporation in calcite

V Mavromatis, Q Gautier, O Bosc, J Schott - Geochimica et Cosmochimica …, 2013 - Elsevier
Calcite growth experiments have been performed in the presence of aqueous Mg at 25° C
and 1bar pCO2 to quantify magnesium partition coefficient DMg=(Mg/Ca) solid (Mg/Ca) fluid …

The effects of diagenesis and dolomitization on Ca and Mg isotopes in marine platform carbonates: implications for the geochemical cycles of Ca and Mg

MS Fantle, J Higgins - Geochimica et Cosmochimica Acta, 2014 - Elsevier
Abstract The Ca, Mg, O, and C isotopic and trace elemental compositions of marine
limestones and dolostones from ODP Site 1196A, which range in depth (∼ 58 to 627 mbsf) …

High-temperature equilibrium isotope fractionation of non-traditional stable isotopes: Experiments, theory, and applications

ED Young, CE Manning, EA Schauble, A Shahar… - Chemical …, 2015 - Elsevier
High-temperature partitioning of the stable isotopes of rock-forming elements like Mg, Si, Fe,
Ni and others are useful new tools in geochemistry and cosmochemistry. Understanding the …

High-precision Mg isotope analyses of low-Mg rocks by MC-ICP-MS

Y An, F Wu, Y **ang, X Nan, X Yu, J Yang, H Yu, L **e… - Chemical …, 2014 - Elsevier
We present a method for precise measurement of Mg isotope ratios for low-Mg rock samples
(where MgO< 1 wt.%) by multi-collector inductively coupled plasma-mass spectrometry (MC …

Iron and magnesium isotopic compositions of peridotite xenoliths from Eastern China

F Huang, Z Zhang, CC Lundstrom, X Zhi - Geochimica et Cosmochimica …, 2011 - Elsevier
We present high-precision measurements of Mg and Fe isotopic compositions of olivine,
orthopyroxene (opx), and clinopyroxene (cpx) for 18 lherzolite xenoliths from east central …

Near-equilibrium isotope fractionation during planetesimal evaporation

ED Young, A Shahar, F Nimmo, HE Schlichting… - Icarus, 2019 - Elsevier
Silicon and Mg in differentiated rocky bodies exhibit heavy isotope enrichments that have
been attributed to evaporation of partially or entirely molten planetesimals. We evaluate the …